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/* GIO - GLib Input, Output and Streaming Library
*
* Copyright (C) 2011 Collabora Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: Stef Walter <stefw@collabora.co.uk>
*/
#include <locale.h>
#include <gio/gio.h>
/* How long to wait in ms for each iteration */
#define WAIT_ITERATION (10)
static gint num_async_operations = 0;
typedef struct
{
guint iterations_requested;
guint iterations_done;
} MockOperationData;
static void
mock_operation_free (gpointer user_data)
{
MockOperationData *data = user_data;
g_free (data);
}
static void
mock_operation_thread (GTask *task,
gpointer source_object,
gpointer task_data,
GCancellable *cancellable)
{
MockOperationData *data = task_data;
guint i;
for (i = 0; i < data->iterations_requested; i++)
{
if (g_cancellable_is_cancelled (cancellable))
break;
if (g_test_verbose ())
g_printerr ("THRD: %u iteration %u\n", data->iterations_requested, i);
g_usleep (WAIT_ITERATION * 1000);
}
if (g_test_verbose ())
g_printerr ("THRD: %u stopped at %u\n", data->iterations_requested, i);
data->iterations_done = i;
g_task_return_boolean (task, TRUE);
}
static gboolean
mock_operation_timeout (gpointer user_data)
{
GTask *task;
MockOperationData *data;
gboolean done = FALSE;
task = G_TASK (user_data);
data = g_task_get_task_data (task);
if (data->iterations_done >= data->iterations_requested)
done = TRUE;
if (g_cancellable_is_cancelled (g_task_get_cancellable (task)))
done = TRUE;
if (done)
{
if (g_test_verbose ())
g_printerr ("LOOP: %u stopped at %u\n", data->iterations_requested,\
data->iterations_done);
g_task_return_boolean (task, TRUE);
return FALSE; /* don't call timeout again */
}
else
{
data->iterations_done++;
if (g_test_verbose ())
g_printerr ("LOOP: %u iteration %u\n", data->iterations_requested,
data->iterations_done);
return TRUE; /* call timeout */
}
}
static void
mock_operation_async (guint wait_iterations,
gboolean run_in_thread,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GTask *task;
MockOperationData *data;
task = g_task_new (NULL, cancellable, callback, user_data);
data = g_new0 (MockOperationData, 1);
data->iterations_requested = wait_iterations;
g_task_set_task_data (task, data, mock_operation_free);
if (run_in_thread)
{
g_task_run_in_thread (task, mock_operation_thread);
if (g_test_verbose ())
g_printerr ("THRD: %d started\n", wait_iterations);
}
else
{
g_timeout_add_full (G_PRIORITY_DEFAULT, WAIT_ITERATION, mock_operation_timeout,
g_object_ref (task), g_object_unref);
if (g_test_verbose ())
g_printerr ("LOOP: %d started\n", wait_iterations);
}
g_object_unref (task);
}
static guint
mock_operation_finish (GAsyncResult *result,
GError **error)
{
MockOperationData *data;
GTask *task;
g_assert (g_task_is_valid (result, NULL));
/* This test expects the return value to be iterations_done even
* when an error is set.
*/
task = G_TASK (result);
data = g_task_get_task_data (task);
g_task_propagate_boolean (task, error);
return data->iterations_done;
}
GMainLoop *loop;
static void
on_mock_operation_ready (GObject *source,
GAsyncResult *result,
gpointer user_data)
{
guint iterations_requested;
guint iterations_done;
GError *error = NULL;
iterations_requested = GPOINTER_TO_UINT (user_data);
iterations_done = mock_operation_finish (result, &error);
g_assert_error (error, G_IO_ERROR, G_IO_ERROR_CANCELLED);
g_error_free (error);
g_assert_cmpint (iterations_requested, >, iterations_done);
num_async_operations--;
if (!num_async_operations)
g_main_loop_quit (loop);
}
static gboolean
on_main_loop_timeout_quit (gpointer user_data)
{
GMainLoop *loop = user_data;
g_main_loop_quit (loop);
return FALSE;
}
static void
test_cancel_multiple_concurrent (void)
{
GCancellable *cancellable;
guint i, iterations;
cancellable = g_cancellable_new ();
loop = g_main_loop_new (NULL, FALSE);
for (i = 0; i < 45; i++)
{
iterations = i + 10;
mock_operation_async (iterations, g_random_boolean (), cancellable,
on_mock_operation_ready, GUINT_TO_POINTER (iterations));
num_async_operations++;
}
/* Wait for two iterations, to give threads a chance to start up */
g_timeout_add (WAIT_ITERATION * 2, on_main_loop_timeout_quit, loop);
g_main_loop_run (loop);
g_assert_cmpint (num_async_operations, ==, 45);
if (g_test_verbose ())
g_printerr ("CANCEL: %d operations\n", num_async_operations);
g_cancellable_cancel (cancellable);
g_assert (g_cancellable_is_cancelled (cancellable));
/* Wait for all operations to be cancelled */
g_main_loop_run (loop);
g_assert_cmpint (num_async_operations, ==, 0);
g_object_unref (cancellable);
g_main_loop_unref (loop);
}
int
main (int argc, char *argv[])
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/cancellable/multiple-concurrent", test_cancel_multiple_concurrent);
return g_test_run ();
}
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